Prevent carbon/graphite-web from installing over and over

See https://github.com/graphite-project/carbon/issues/86 for more information
Correct location for config files
Make DB creation non-interactive
Install/configure lighttpd
Add graphite user/group and start services
Correct config file locations
Fix dependencies

flup is needed for graphite-web

twisted needs to be at 11.1.0 - see
http://stackoverflow.com/questions/19894708/cant-start-carbon-12-04-python-error-importerror-cannot-import-name-daem